Fluorine plastic pipe expanding device
By using a limiting slider and V-shaped seat structure to quickly position the fluoroplastic tube, and using a conical expanding head and hot air blower to expand the hole, the problem of cumbersome clamping steps in existing devices is solved, and the tube expanding efficiency is improved.
Patent Information
- Application Number
- CN202520323692.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-27
AI Technical Summary
The existing fluoroplastic tube expansion device has a cumbersome clamping and fixing process, resulting in low expansion efficiency.
The device employs a limit slider and V-shaped seat structure for rapid positioning, combined with a tapered reaming head and a hot air blower for reaming operations, and uses a drive motor and adjusting screw to move and replace the tapered reaming head.
It enables rapid positioning and enlargement of fluoroplastic tubes, improving tube enlargement efficiency and simplifying the operation process.
Smart Images

Figure CN223864318U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a pipe expanding device, especially to a fluoroplastic pipe expanding device. BACKGROUND
[0002] Polytetrafluoroethylene (PTFE) material is particularly widely used in fluoroplastic materials. The pipe made of polytetrafluoroethylene material has excellent chemical stability, high and low temperature resistance, corrosion resistance, flame resistance, sealing property, high lubrication non-stickiness, electrical insulation and good anti-aging ability. In the butt joint process of fluoroplastic pipe, the fluoroplastic pipe needs to be expanded and butt joint with external pipe.
[0003] For example, a fluoroplastic pipe expanding device disclosed in Chinese patent publication No. CN219968828U belongs to the technical field of fluoroplastic pipes, which comprises two mounting blocks, a connecting plate arranged at the top end of the two mounting blocks, and two mounting seats arranged at the top end of the connecting plate. The top end of each mounting seat is provided with a mounting groove, one side of the moving part of the third telescopic rod is connected with a bottom block, the lateral side of each bottom block is welded with a fixed plate closely attached to the mounting groove, the side of each fixed plate is connected with a lower extrusion block, the top end of each fixed plate is provided with a groove, the inner wall of the groove is connected with a first telescopic rod, and the moving part of each first telescopic rod is connected with a mounting plate. This fluoroplastic pipe expanding device is convenient for processing fluoroplastic pipes of different lengths, clamping and fixing fluoroplastic pipe connectors of different sizes, does not need to replace the fixing device, avoids deviation, and improves the use efficiency.
[0004] The above-mentioned fluoroplastic pipe expanding device has some problems when in use. First, the clamping structure can effectively fix the fluoroplastic pipe and avoid deviation during pipe expansion, but the steps of clamping the fluoroplastic pipe are complicated, which leads to low pipe expansion efficiency. UTILITY MODEL CONTENTS
[0005] The utility model aims to provide a fluoroplastic pipe expanding device to solve the above-mentioned problems in the background art.
[0006] To achieve the above object, the utility model provides the following technical scheme: A fluoroplastic pipe expanding device, including base, pipe to be expanded, the base is internally provided with a limiting sliding groove, the limiting sliding groove is internally provided with a limiting sliding block which is slidably installed, the limiting sliding block is provided with a first V-shaped seat on the upper surface, the first V-shaped seat is provided with a resisting block on one side, the first V-shaped seat is provided with a second V-shaped seat on the other side, the second V-shaped seat is provided with a fixing seat on the lower surface, the fixing seat is fixedly connected with the base on the lower surface, the base is provided with a stand on the upper surface near one side edge, the stand is internally provided with a second limiting sliding groove, the second limiting sliding groove is internally provided with a second limiting sliding block which is slidably installed, the second limiting sliding block is internally provided with a threaded mounting sleeve block which is embeddedly installed, the threaded mounting sleeve block is internally provided with a threaded mounting column which is threadedly installed, the threaded mounting column is provided with a taper hole expanding head on one end, and the base is provided with a hot air blower through a support.
[0007] Preferably, the limiting sliding groove is internally provided with a threaded screw rod which is rotatably installed, and the other side of the base is provided with a driving motor which is fixedly connected with the threaded screw rod on the output end.
[0008] Preferably, the limiting sliding block is internally provided with a threaded through hole which is threadedly matched with the threaded screw rod.
[0009] Preferably, the second limiting sliding groove is internally provided with an adjusting screw rod which is rotatably installed, and the adjusting screw rod is provided with a knob on the upper end.
[0010] Preferably, the second limiting sliding block is internally provided with an adjusting threaded sleeve block which is embeddedly installed, and the adjusting threaded sleeve block is threadedly matched with the adjusting screw rod.
[0011] Compared with the prior art, the utility model has the beneficial effects that:
[0012] 1. The pipe to be expanded can be quickly positioned by placing it in the V-shaped groove on the first V-shaped seat and the second V-shaped seat, and the pipe to be expanded can be held by the first V-shaped seat and the second V-shaped seat, so that the hole expanding operation can be performed, and compared with the prior art, the complicated clamping and fixing steps are not needed, and the hole expanding efficiency can be effectively improved.
[0013] 2. The knob drives the adjusting screw rod to rotate, the adjusting screw rod drives the second limiting sliding block to move, the second limiting sliding block drives the taper hole expanding head to move up and down, the taper hole expanding head can be aligned with the center of the pipe to be expanded of different specifications, the taper hole expanding head can be easily rotated and replaced, the taper hole expanding head of a suitable diameter can be replaced according to the actual requirement, and the device can be adapted to the pipe expanding machining of the pipe to be expanded of different diameters. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 It is a whole structure schematic view of the utility model;
[0015] Figure 2 It is the whole structure schematic view of the pipe to be expanded when the pipe is expanded according to the utility model;
[0016] Figure 3 It is the first V-shaped seat structure schematic view of the utility model;
[0017] Figure 4 It is the partial explosion view of the utility model.
[0018] In the drawing: 1, base; 101, limiting sliding groove; 102, threaded screw rod; 103, driving motor; 2, first V-shaped seat; 201, abutting block; 202, limiting sliding block; 203, threaded through hole; 3, second V-shaped seat; 301, fixed seat; 4, hot air machine; 5, stand; 501, second limiting sliding groove; 502, adjusting screw rod; 6, second limiting sliding block; 601, threaded mounting sleeve block; 602, adjusting threaded sleeve block; 7, conical expanding head; 701, threaded mounting column; 8, pipe to be expanded. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by the ordinary skilled in the art without creative labor fall within the scope of protection of the utility model.
[0020] Please refer to Figures 1-4 The utility model provides a kind of technical scheme: a fluoroplastic pipe expanding device, including base 1, pipe to be expanded 8, base 1 is internally provided with limiting sliding groove 101, limiting sliding groove 101 is internally slidably installed with limiting sliding block 202, limiting sliding block 202 is fixedly connected with first V-shaped seat 2 on top, first V-shaped seat 2 is fixedly connected with abutting block 201 on one side, first V-shaped seat 2 is provided with second V-shaped seat 3 on the other side, second V-shaped seat 3 is fixedly connected with fixed seat 301 below, fixed seat 301 is fixedly connected with base 1 below, base 1 is fixedly connected with stand 5 on top near one side edge position, second limiting sliding groove 501 is formed in stand 5, second limiting sliding block 6 is slidably installed in second limiting sliding groove 501, threaded mounting sleeve block 601 is embeddedly arranged in second limiting sliding block 6, threaded mounting column 701 is threadedly installed in threaded mounting sleeve block 601, conical expanding head 7 is fixedly connected with threaded mounting column 701 one end, hot air machine 4 is fixedly connected with base 1 by support on top.
[0021] In the embodiment, the to-be-reamed pipe 8 can be quickly positioned by being placed in the V-shaped groove on the first V-shaped seat 2 and the second V-shaped seat 3, and the to-be-reamed pipe 8 is supported by the first V-shaped seat 2 and the second V-shaped seat 3. When placing, attention should be paid to the to-be-reamed pipe 8 extending from the reaming end to be close to the conical reaming head 7, and not to be placed completely on the second V-shaped seat 3, as shown in Figure 2 The hot air fan 4 can be started to blow hot air to heat and soften the to-be-reamed pipe 8 extending end. Because the limiting sliding block 202 is in sliding fit with the limiting sliding groove 101, the first V-shaped seat 2 is slidingly installed on the base 1, the first V-shaped seat 2 is moved to be close to the second V-shaped seat 3, the abutting block 201 abuts against the end of the to-be-reamed pipe 8, and then the to-be-reamed pipe 8 is gradually moved to be close to the conical reaming head 7. The conical reaming head 7 is inserted into the end of the to-be-reamed pipe 8 to perform reaming operation on the to-be-reamed pipe 8. The conical reaming head 7 is in threaded fit with the threaded mounting column 701 and the threaded mounting sleeve block 601, and is threaded on the second limiting sliding block 6. When reaming operation of different hole diameters is needed, the conical reaming head 7 can be easily rotated to be replaced, and the conical reaming head 7 with a suitable diameter can be replaced according to actual needs.
[0022] To achieve the purpose of moving the first V-shaped seat 2, the device adopts the following technical scheme: the threaded screw rod 102 is rotatably installed in the limiting sliding groove 101, the drive motor 103 is fixedly connected to the other side of the base 1, the output end of the drive motor 103 is fixedly connected to the threaded screw rod 102, the threaded through hole 203 is formed in the limiting sliding block 202, and the threaded through hole 203 is in threaded fit with the threaded screw rod 102.
[0023] The drive motor 103 can be started to drive the threaded screw rod 102 to rotate. The threaded screw rod 102 is in threaded fit with the threaded through hole 203, and then the rotation of the threaded screw rod 102 can drive the limiting sliding block 202 to move. The movement of the limiting sliding block 202 can drive the first V-shaped seat 2 to move, and then the first V-shaped seat 2 drives the to-be-reamed pipe 8 to move.
[0024] To achieve the purpose of adjusting the height of the conical reaming head 7, the device adopts the following technical scheme: the adjusting screw rod 502 is rotatably installed in the second limiting sliding groove 501, the knob is fixedly connected to the upper end of the adjusting screw rod 502, the adjusting threaded sleeve block 602 is embeddedly installed on the upper surface of the second limiting sliding block 6, and the adjusting threaded sleeve block 602 is in threaded fit with the adjusting screw rod 502.
[0025] By utilizing the knob, the adjusting screw rod 502 can be rotated, the adjusting screw rod 502 is in threaded cooperation with the adjusting threaded sleeve block 602, and then the rotation of the adjusting screw rod 502 can drive the second limiting slide block 6 to move, the movement of the second limiting slide block 6 can drive the conical hole expanding head 7 to move, the height of the conical hole expanding head 7 can be adjusted, and when the different pipes to be expanded 8 are expanded, since the diameters of the pipes to be expanded 8 are different, the pipe to be expanded 8 is placed in the V-shaped groove, the center of the pipe to be expanded 8 is at different heights, and then the height of the conical hole expanding head 7 needs to be adjusted, so that the conical hole expanding head 7 is aligned with the center of the pipe to be expanded 8.
[0026] The working principle and use process of the utility model are as follows: when in use, the pipe to be expanded 8 needs to be placed in the V-shaped groove on the first V-shaped seat 2 and the second V-shaped seat 3, the hot air blower 4 is started to blow hot air, and the end of the pipe to be expanded 8 is heated and softened, at this time, the first V-shaped seat 2 is driven to move by the driving motor 103, the movement of the first V-shaped seat 2 drives the abutting block 201 to move, the abutting block 201 abuts against the end of the pipe to be expanded 8, and then the movement of the first V-shaped seat 2 drives the pipe to be expanded 8 to move, the pipe to be expanded 8 is pushed to be close to the conical hole expanding head 7, the conical hole expanding head 7 is inserted into the softened end of the pipe to be expanded 8, and the hole expanding operation is performed.
[0027] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.
Claims
1. A fluoroplastic tube expansion device, comprising a base (1) and a tube to be expanded (8), characterized in that: A limiting groove (101) is provided in the base (1), and a limiting slider (202) is slidably installed in the limiting groove (101). A first V-shaped seat (2) is fixedly connected to the top of the limiting slider (202). A stop block (201) is fixedly connected to one side of the first V-shaped seat (2), and a second V-shaped seat (3) is provided on the other side of the first V-shaped seat (2). A fixing seat (301) is fixedly connected to the bottom of the second V-shaped seat (3). The bottom of the fixing seat (301) is fixedly connected to the base (1), and the top of the base (1) is against... A stand (5) is fixedly connected to one side edge. A second limiting groove (501) is provided in the stand (5). A second limiting slider (6) is slidably installed in the second limiting groove (501). A threaded mounting sleeve (601) is embedded in the second limiting slider (6). A threaded mounting post (701) is threadedly installed in the threaded mounting sleeve (601). A tapered expanding head (7) is fixedly connected to one end of the threaded mounting post (701). A hot air blower (4) is fixedly connected to the base (1) through a bracket.
2. The fluoroplastic tube expander according to claim 1, characterized in that: A threaded screw (102) is rotatably installed in the limiting slide groove (101), and a drive motor (103) is fixedly connected to the other side of the base (1). The output end of the drive motor (103) is fixedly connected to the threaded screw (102).
3. The fluoroplastic tube expander according to claim 2, characterized in that: The limiting slider (202) has a threaded through hole (203) inside, and the threaded through hole (203) is threadedly engaged with the threaded screw (102).
4. The fluoroplastic tube expander according to claim 1, characterized in that: An adjusting screw (502) is rotatably installed in the second limiting slide groove (501), and a knob is fixedly connected to the upper end of the adjusting screw (502).
5. The fluoroplastic tube expander according to claim 4, characterized in that: The second limiting slider (6) is fitted with an adjusting threaded sleeve (602), which is threadedly engaged with the adjusting screw (502).
Citation Information
Patent Citations
Fluorine plastic pipe expanding device
CN219968828U